The physical processes involved in energy exchange between the radiation field and relativistic electrons in a freeelectron laser cavity with an axial guide field have been discussed in the context of the single-particle dynamics as well as the solution of the Vlasov—Maxwell equations. Thus laser gains have been calculated at the new radiation frequency.
© 1988 Optical Society of America
L. M. Bali, T. P. Pandya, Pallavi Jha, and Rachna Manglik, "New radiation frequency in free-electron lasers with axial guide field," J. Opt. Soc. Am. B 5, 2322-2326 (1988)